<svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" version="1">
 <rect style="opacity:0.2" width="40" height="40" x="4" y="5" rx="12" ry="12"/>
 <rect style="fill:#e4e4e4" width="40" height="40" x="4" y="4" rx="12" ry="12"/>
 <rect style="opacity:0.1" width="28" height="28" x="-39" y="-38" rx="14" ry="14" transform="matrix(0,-1,-1,0,0,0)"/>
 <rect fill="#e74c3c" width="28" height="28" x="-38" y="-38" rx="14" ry="14" transform="matrix(0,-1,-1,0,0,0)"/>
 <path style="fill:#ffffff;opacity:0.2" d="M 16 4 C 9.352 4 4 9.352 4 16 L 4 17 C 4 10.352 9.352 5 16 5 L 32 5 C 38.648 5 44 10.352 44 17 L 44 16 C 44 9.352 38.648 4 32 4 L 16 4 z"/>
</svg>
